Iris prismatica Pursh. clade: Limniris. Slender Blue Iris, Slender Blue Flag. Phen: May-Jun; Jun-Jul. Hab: Bogs, wet acidic barrens, marshes, ditches, pools. Dist: NS south to GA, disjunct in w. NC (Henderson County) and sc. TN (Coffee County).

Origin/Endemic status: Native

Synonymy: = C, FNA26, G, GW1, K1, K3, K4, NE, NY, Pa, RAB, S, Tn, Va, W; = Limniris prismatica (Pursh) Rodion. – Crespo, Martínez-Azorín, & Mavrodiev (2015); > Iris prismatica Pursh var. austrina Fernald – F; > Iris prismatica Pursh var. prismatica – F

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